CVE-2026-18221

CriticalCVSS 9.8/10Last modified Sep 8, 2026

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to gain unauthorized access due to improper validation of client-supplied authentication parameters.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287

Affected software

No affected versions have been published.

Timeline

Published: Sep 4, 2026
Last modified: Sep 8, 2026
NVD status: Analyzed

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